Cotton-gin



2 Sheets-Sheet 1.

(No Model.)

J; Du BOIS..

Cotton Gin.

No. 237,433. Patented Feb. 8, I881.

\A/ITFIEEEEE 2 Sheets-Sheet 2.

( Model.)

J. Du BOIS. Cqttqn Gin.

No. 237,433. Patented Feb. 8, I881.

a III 7 M. v gflw 7 Z i W i MK V UNITED STATES) PATENT OFFICE.

JOHN DU BOIS, OF EUTAW, ALABAMA.

COTTdN-GIN.

SPECIFICATION forming part of Letters Patent No. 237,433, dated February 8, 1881.

Application filed March 20,1880. (No model.)

had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 in the drawings is a side elevation of my invention, partly in section; Fig. 2, a vertical section thereof, and Figs. 3 and 4 detail views.

This invention has relation to certain novel improvements in cotton-gins, as will be hereinafter described, and subsequently pointed out in the claims.

In the accompanying drawings, A represents the frameof the cotton-gin, to which is journaled the brush B, having secured to its shaft a pulley, a, over which passes a belt, I), said belt passing around a pulley, c, and to and around a large pulley, d, upon the shaft 0 ofthe circular saws O, by which arrangement both the brush B and saws O are caused to rotate.

Above the saws O, in a line diagonal to their axes, is arranged a fan, D, having upon its shaft a pulley, f, which connects with a friction-pulley, g, by a belt, h. This friction-pulley g has its bearing in the end ofa yielding plate, E, so that the roller secured to said pulley will have capacity of rising over any obstructions, such as cotton-seed, 850. This plate E has an elongated slot, 2', through which passes a bolt or screw, j, in contact with the frame of the machine, for the purpose of limiting the upward movement of said plate and of the roller operated by the pulley g. The periphery of the roller or pulley 9 comes in contact with the face or periphery of the shaft 6, so that the motion of the large pulley cl will impart motion to the pulley f by the belt h. The roller g is kept down in contact with the shaft 6 by a suitable spring, 70, the free end of which bears upon the edge of the plate E. The pulley c has its hearings in a verticallyadjustable box, F, within the frame A, as illustrated in Fig. 4, said box being vertically adjustable for the purpose of easily tightening or loosening the belt I).

The brush B is arranged diagonally to the saws O and below the same, and an inclined door, G, is hinged to the frame A and covers the upper portion of the brush, whereby the be carried into the lint-room with the cotton.

The cotton-box K is hinged at m to the frame A, so that it can be raised or thrown back out of the way, when required. The box K has detachably connected to it a cover, L, which forms a top for the frame A, said cover being connected to the box by hookedrodsa engaging with eyes or staples p on the cover, whereby said box can be raised at pleasure without the cover being in the way, the latter sliding along over the top of the frame A when the box is raised. The box Khas apanel, M, which may be raised or lowered byvscrews q, upon which the lower edge of the panel rests. The panel Mhas screws 1' passing through it horizontally, and these screws have'loosely securedto their ends a bar, N, having hooked ends 8, to which is detachably connected, at its lower end, a cover, 1?, which by its own weight keeps closed, but may be readily opened, when required, to insert the cotton. The screws 1", as well as the screws q, admit of any degree of adjustability upwardly of the lining or cover P, to better suit the capacity of the saw-chamber to the different sizes of the roll and the various kinds and conditions of seed-cotton to be handled.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination, in a cotton-gin, of fan D, pulleys f and g, belt h, shaft e, and saws O, the pulley 9 being arranged to come in contact with the shaft 0, which imparts motion to said pulley g, and to the pulley f, as described.

2. The combination, with the saws O, shaft e, and pulley d, of the friction-roller g, yieldthe hinged cotton-box K, having detachably ing plate E, spring 70, and the fan 1), having connected to it the sliding cover :L, substanpulley f and belt h, substantially as and for t-ia-lly as and for the purpose described.

the purpose specified. In testimony that I claim the above I have I 5 5 3. The combination, with a gin-frame, of hereunto subscribed my name in the presence the hinged cotton-box K, panel M, adapted to of two witnesses.

move up and down to raise and lower said box K, cover P, bar N, with hooked ends 8, and JOHN DU BOIS' set-screw r, substantially as and for the pur- Witnesses: 1o pose set forth. ANDREW HERO, J12,

4. The combination, with a gin-frame, of D. I. DOWERS. 

